The Nervous System
The Nervous System
All about the nervous system 5 depth's should cover every thing about it
5 depths≈ 209 min of reading59 practice questions
The ladder
Choose how deep to go
Every depth is open. Start where it feels interesting — you can always move back.
- Discoverabout 39 minWires of the Body: Your Nervous SystemThis lesson introduces the nervous system as the body's messaging network, tracing how signals travel between sense organs, brain, and muscles. It explains neurons, the central and peripheral systems, and a real reflex arc using everyday Indian examples.
- Understandabout 44 minMessages in Microvolts: How Your Body Talks to ItselfThis lesson follows a single signal from skin to brain and back, showing how nerve cells use electricity and chemicals to carry messages. It explains why reflexes skip the brain, why the central and peripheral systems are not separate 'departments', and where common mix-ups occur
- Investigateabout 40 minWires of Life: How Your Body Talks to ItselfThis lesson investigates how nerve cells are built to carry messages, why some signals race while others crawl, and how changing a stimulus changes the response. You will work with real evidence from Indian labs and everyday reflexes.
- Go deeperabout 38 minWires of the Body: How Your Nervous System TalksThis lesson follows a nerve signal from skin to muscle, explaining how neurons send all-or-none electrical spikes, how myelin acts like insulation on copper wire, and why your brain and body divide their communication jobs.
- Extendabout 48 minWired for Speed: How Your Brain Talks to Your BodyThis lesson explores how electrical signals travel through neurons and synapses to control everything from reflexes to conscious decisions. You will build working models, design experiments, and examine how nervous systems adapt across species and after injury.
Practise and apply
Question bank · 59 questions
2 sections from Foundation to Challenge, each with hints and a worked solution — or play a 10-question round for points and stars.
Foundation 15Core 20Stretch 14Challenge 10
Words to know
51 words are explained in these lessons
NeuronDendriteAxonSynapseNeurotransmitterAction potentialAfferentAutonomic nervous systemCentral nervous system (CNS)EfferentGlial cellInterneuron+39 more